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fractal
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iterat31
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randwalk.frm
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1993-09-19
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490b
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23 lines
;Iterate! formula file
;by Brent Hugh
;parameter and window defaults
a=1
b=.5
c=1
d=.5
mu=0
xmin=-10
xmax=10
ymin=-10
ymax=10
;randomwalk function
x=x + a*rn - b
y=y + c*rn - d
;compare to Function A with parameters a=b=6 c=d=1
;Function A is completely deterministic and this function is random--
;yet both functions look the same!
;(Actually, random number generators on computers are done with iterated
;functions, too, but let's not get into that.)